Find cheap flights from Austria to Colorado

Round-trip
1 adult
Economy
0 bags
Fri 4/21
Fri 4/28

Here is why travelers choose KAYAK

Save 22% or moreCompare multiple travel sites with one search

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Search hundreds of travel sites at once for deals on flights to Colorado

Good to know

Low season

May

High season

July

Cheapest flight

$458

Average price round-trip

$810

Good deal round-trip

$607

Good deal one-way

$553
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Vienna to Denver
(avg. price over the last 2 weeks)
or less
or less

FAQs for booking flights from Austria to Colorado

Top 5 airlines serving from Austria to Colorado

Scores according to KAYAK customer reviews
8.6
Singapore AirlinesOverall score based on 3892 reviews
8.8Boarding
8.5Comfort
8.9Crew
8.6Entertainment
8.3Food
Airline reviews
Pros: "checking in at Changi Airport is always a pleasure, helpful friendly staff"
Cons: "the food is disgusting"
Read more about Singapore Airlines
Pros: "checking in at Changi Airport is always a pleasure, helpful friendly staff"
Cons: "the food is disgusting"
Pros: "Crew were amazing and great entertainment"
Cons: "Boarding could be better"
Cons: "The lunch part at the end was a little late we had just had a snack and a small sandwich so we didn't eat a lot. But food was great!"
Pros: "Seats are spacious even for economy class."
Cons: "None"
Pros: "One of the best seating I have ever had. Compared to Emirates the seat was spacious."
Cons: "Food was good but was not full compared to emirates."
Pros: "The crew was very helpful and courteous."
Cons: "The flight was delayed and I decreased my time in Singapore"
Pros: "Crew was attentive."
Cons: "The entertainment was rather limited."
Pros: "Staff was great as usual"
Cons: "Many entertainment monitors including my row of seats were stuck for a while. The “please fasten your seatbelt” was on the screen and made the monitor unusable for the first 1hr of the flight"
Pros: "The crew Were exceptional ."
Cons: "If The seat recline could go down a bit more innpremium economy, that would be perfect"
Pros: "Seats were good"
Cons: "Food could have been better"
Pros: "Although business was full, it was quiet. Cabin chief was very helpfull and professional."
Cons: "food choices are not bad. TV screens are super bad. Resoulition is almost from 90's era first flat screens! One stewardess had friends in business. a couple sitting one after another in window seats. She spent most of her time chatting with them, taking photos while we were trying to sleep."
Pros: "Seat was very comfortable, crew was very nice,"
Cons: "food is average. TV screens are so bad that you cant watch a full movie. Seat is comfortable. Over all the plane was old and worn out"
Pros: "Entertainment system ok"
Cons: "Change if gate 30 minutes before departure and no info at old gate. New gate very far away, terrible for old people."
Pros: "Foods. Drinks. Entertainment."
Cons: "Nothing. Everything’s so perfect!"
Pros: "On time Smooth landing and take off Airport was beautiful, nice clean toilets Lovely and polite staff on board Food was okay Nice range of in-flight entertainment"
Cons: "Air port does not have automatic internet connection We were there for 8 hours with no internet because we had no international roaming to receive the PIN via SMS. The four PINS generated by the counter staff did not work. We all took turn to try to no avail. by then we have walked too far from the counter we could not be bother going back. No airport that I've been to had poor internet service connection like this airport, yet it is supposed to be THE WORLD'S NUMBER ONE AIRLINE. We boarded at 11.30pm, last time we flew with them they gave us supper. Last night they gave us only water. We went to sleep hungry till the morning. Since when they started to operate like those cheap airlines that you have to pay for your food? And the night package did not have eye mask.... how could we sleep... ? Singapore airline could learn from Qtar. Very very disappointed."
Pros: "Service was great on both sectors"
Cons: "Premium economy seat is still not comfortable enough in comparison with economy."
Pros: "food"
Pros: "Everything else"
Cons: "Food was less than marginal"
Pros: "Espresso coffee, champagne, crew, headphones"
Cons: "Cabin temperature too cool"
Pros: "I will only use Singapore Air for anywhere they fly. They really care about their passangers, 2 checked bags 1 carryon no charge, no airline does that. They constantly feed u & alcoholic beverages all at no extra charge. Flight attendants always have a smile on their flight. In flight entertainment was great, touch screen and remote controller. They supply earbuds, socks, toothbrush and paste."
Cons: "Absolutely no complaints"
Pros: "Efficient, comfortable."
Cons: "SQ860 flight on 4th April morning delayed and greatly affected my today trip scheduled."
Pros: "Nothing"
Cons: "Poor service."
Cons: "Some staff not courteous which surprised me"
Pros: "I like everything about Singapore airline service."
Cons: "Nil"
Pros: "business seats were excellent"
Cons: "all was good"
Cons: "Because the flight from IAD to London was cancelled, I never made it to this flight."
Pros: "I felt safe ( important to me) and had just the right amount of attention from staff Very comfortable"
Pros: "I love traveling on Singapore airlines. They have excellent service and always on time. Their entertainment system is very good. I won't say excellent as I've seem Emirates and they still have along way to go to catch up."
Cons: "They did not give us the landing cards and we had to fill them in at the airport. Many were like us and I am surprised. Also for business class passengers they don't get into a priority lane as you see in Emirates and other airlines. while Singapore airline is very good, they still lack in the details."
Pros: "I liked there was entertainment"
Cons: "It was an old tired plane"
Pros: "Great they are now flying Canberra to Singapore. Judging by our full flight it is very popular also!"
Pros: "Crew, cabin and food."
Cons: "Lack of entertainment console at each seat"
Pros: "Crews are truly nice and patient"
Cons: "Crews are very nice, food are not really good"
Pros: "Such incredible staff. Always Willing to go above and beyond! I flew 17 hours with them and they made the flight a breeze. Great airline, will be flying with Singapore again"
Cons: "Really nothing. I loved flying with them."
Pros: "Personal TV"
Pros: "The service in coach was very impressive! The flight attendants could not be more attentive! I can only imagine how it would be in business or first class."
Pros: "Food, entertainment, cleanliness of the restrooms"
Cons: "There was a passenger on the return flight who had the window shutter up during sleep time right across my row, and the cabin was so bright to sleep for me. I notified the crew but they were not keen on bothering the passenger"
Pros: "Great flight amazing service"
Pros: "The choices for entertainment were excellent! I was never bored for a second on my 20++ hours of flight. I love how they gave us in-ear earphones instead of the normal airline headphones that keep on sliding off."
Cons: "It was quite difficult for me to get comfortable. Maybe it's due to my shortness, I can't really rest my head that well"
Pros: "Cabin crew are always great"
Cons: "Cabin fitout is getting tired and dated. Etihad leaves it for dead in first class"
Pros: "Professionalism and friendliness of crew"
Cons: "Seat not great for my length even though it was business class"
Cons: "On my trip to Japan, the staff was incredibly rude. Horrible commendations. The controls didn't work. And the desert had mold in it."
Pros: "Really recommended . Wait alittle longer but i got a free tour go around Singapore ."
Pros: "Staff on board were lovely."
Cons: "I asked to be placed in a seat as close to the front as possible as I suffer from motion sickness in the back of the plane. I was placed in the back row all the way to my destination and all the way home. I vomited 8 times and felt very sick. I did notice that there were many seats available in the front of the plane but they are never given out as women with babies and children always get them and then single travellers like myself are made sit in the back. I travel a lot, I usually fly Qantas and they are very good at providing seats closer to the front. I will be reluctant to fly Singapore Airlines again due to the fact that they were not accommodating at all."
Pros: "Seating space was very good. Meals terrific"
Pros: "Crew was outstanding"
Cons: "No sound on my entertainment system"
Pros: "It was convenient"
Cons: "The seats were so hard I had to sit on a blanket and have a cushion behind. The entertainment was poor and the system was old."
Pros: "Overall, the Singapore Airlines team are always professional and friendly. They pay attention to every detail and try to make sure everyone is as comfortable as possible. One of my favorite things about this airline is that snack and juice are readily available throughout the entire flight without bothering the flight attendants, say in the middle of the night. This includes fresh fruit and juice, which in my book is a huge plus. Their bathrooms are always clean and include extra cosmetic amenities."
Cons: "Sometimes I feel like the cuisine is a bit too Asian and spicy. I had the fish curry and paid for it later in the flight in the bathroom, if you know what I mean. Also I was disappointed that I could not continue the same movie on this flight, as my previous flight, despite both flights being Singapore Air and using the KrisWorld entertainment system. I think the movies should be the same on each flight. However, the wide selection was great and I watched something else instead and really enjoyed the music selection."
Pros: "The service"
Cons: "The quality of the red wine"
Pros: "It is always better when this flight is operated by wide body aircraft, as was the case with A330 this time"
Pros: "Awesome cabin crew, amazing food, more leg room than European and American carriers. Amazing price. What else can you ask for in economy?"
Cons: "Food. Lack of vegetarian options in 2nd leg."
Pros: "Very nice love it"
Cons: "Very nice and love"
Cons: "Too warm, chaotic boarding, not enough baggage space, airline couldn’t upgrade me at the gate with miles."
Pros: "I never usually like plane food but liked Turkish Airline meals on all flights I’ve been on so far"
Cons: "I do like turkish airlines but wasn’t happy with this flight. On check in we were left with seats towards the back of the aircraft. The lady seated neit to us in the aisle seat was in a wheel chair so was a problem if having to get in and out. I didn’t think it was fair that a person who depends on a wheel chair sits so far back on a plane. She also had to deal with our crying baby"
Cons: "Connection flight from plane to the gate,seats need to be updated"
Pros: "Excellent service from ticket agents, cabin stewards, etc."
Cons: "Because we were late, my baggage didn't get transferred. I had to ask around to find out who handles Turkish air baggage issues in Tel Aviv. I found out within a out half an hour what would happen -- you had them delivered to where I was staying the next day. It all went smoothly and fortunately I had allowed extra time after I arrived ... no problems. And the people who handled your baggage claims were professional."
Cons: "Entertainment system not operational"
Cons: "Entertainment system didn’t work Seats did not recline"
Pros: "I liked nothing about this flight!"
Cons: "No matter the airlines, all passengers going through immigration wait in long lines, no ropes but rather a big free for all. Push and shove."
Pros: "Confort"
Cons: "Took them too long to pick up the trash ..."
Pros: "AMAZING AIRLINE. Anyone traveling to this part of the world, fly Turkish!! Best international flight I have ever taken."
Pros: "The service was very good as always with Turkish."
Cons: "Seats are not spaced enough. It is not big enough for a 6 foot 3 male caucasian."
Cons: "same, boarding crew was not friendly, and it took a while for boarding."
Pros: "The crew was excellent, the food good."
Cons: "The entertainment system, in three out of four long flights, did not work. In the one that "worked", the sound was terrible and this made the experience totally unsatisfactory. A major airline should avoid this."
Pros: "including new releases"
Pros: "Friendliness of crew."
Cons: "N/A"
Pros: "Spacious seating, even the last row reclines. Very good service. Free food and drink served throughout - including two warm meals."
Cons: "Boarding was organized but super time intensive. They group you together and then board in groups. Seems unnecessary. Can't they just boarding rows, like most airlines?"
Cons: "Could not board the plane although being at the airport well in advance. Forced to buy additional tickets for enourmously high price. Stay at the airport additional half a day without food and water. No one from the company showed any concern and were of no help. Horrible experience. Never again fly Turkish airlines."
Pros: "The few and very rarely seen employees are not even willing to listen to our questions let alone help us, Ican for sure say in 1 out of 10 wotkers there was only one that was willing to help And did let the one that helped us know I and my co travelers apriciated her or him to me there was one girl who offered me help after I cried because I thougth I would miss my flight to houston. I told her tgank you a 1000 times."
Cons: "Every thing Lack of help Lack of infirmation Lack of annoucement of next step Lack of a simple WIFI so I could let someone know what is happening to me There was no airport free wifi This turkish airline have now lost me as a customer unless I am traveling to somaliya where no other airline goes Bye bye Turkish air I am deeply disappointed at the lebel of the airport serveses For that reason I am done dealing with it and I will let this known to my friends and Family so they also stop doing bussniss with this airline It it my new mission now to stop anyone flying turkish air because of customer serves ... I just glad my horrifying experiance is over and I am home now Thanks for askiking me how was my flight"
Pros: "Nothing."
Cons: "The fact that I missed my connection flight in Thailand because of a two hour delay. I was never informed why there was so much of a delay and in turn I had to pay triple of what I payed before for my flight. Very disappointed. Won't be flying this airline again. Service was rude. They should be more responsible when it comes to timing. We were on the flight waiting for two hours!!!"
Cons: "Had to remind the hostess to bring our meal as she missed us in giving out the meals initially."
Cons: "You could be choose food... one of the dish was only pasta... what about the people who's allergic? I am... The business class crew was very stuck up! Totally looked down at people who wasn't in the business class... The Aircraft has no AC that you could adjust air blowing on you! It was incredibly hot the whole time !"
Pros: "The food and amenities were alright."
Cons: "It left late, the plane lost my friend's luggage for a day."
Cons: "The airport staff in Istanbul was horrible. Wouldn't help find the gate until the last second. After arriving in JFK. We're stuck on plane on tarmac for 3.5 hours "waiting for a gate" unacceptable."
Pros: "Everything was great. All staff were very pleasant and attentive. Really liked their customer service."
Cons: "The chairs in economy line were uncomfortable after a couple of hours. It was really hard to sleep."
Pros: "Super friendly - and fantastic entertaiment!"
Cons: "Security and bags checks returning were awful about 4 between airport doors and airplane. Must be a way to clean the process up some."
Cons: "It was very hot on the plane."
Cons: "Wheel chair flyers should get first assistant"
Pros: "Customer service and professionalism of crew was outstanding. It felt like how it USED to be on other airlines, and even better! The food service was great, and I appreciated the little necessities bag. The travel experience was a positive part of our trip, instead of the usual exhausting drudgery of traveling very far distances."
Cons: "The bathroom did get a little smelly, and, as a tall person, the leg room was very tight when people put their seats back."
Pros: "Food and pleasant service."
Pros: "Free wifi for business class HD movies + good quality DENON headseat"
Cons: "Terrible foods taste Zero hospitality crews Lack of food and deink service during 13hour flight"
Pros: "Food was excellent."
Cons: "Can't think of anything."
Pros: "I liked the food and the crew and the entertainment."
Cons: "I didn't like the trip two hours late."
Pros: "Was very good everything"
Pros: "Comfort of the plane and pleasant crew. Food was terrific."
Cons: "Might have liked more option of current movies."
Pros: "The flight on time"
Cons: "Nothing. A short flight, not much expectation besides on time departure and arrival"
Cons: "Fantastic"
Pros: "Nothing"
Cons: "Staff was rude, was so bad cannot even use word customer service to describe it"
Cons: "No gate number on boarding pass from instambul to tirana. Very confusing ."
Cons: "2 hour departure delay."
Pros: "Everything"
Pros: "Nothing"
Cons: "Poor Business class Entertainment system didn't work Seats didn't recline Boarding was terrible Staff at Istanbul airport very bad Organisation terrible support very bad"
Pros: "Crew is very flexible and accomodating to individual needs Food is good compared to other airlines Entertainment is programme is good"
Cons: "Toilettes were a bit messy, already after 2 hours. The screen of the entertainment programme is too busy to find things"
Pros: "Best long distance airline I have flown to date."
Pros: "New plane. Excellent quality and quantity of food. Amenity pack, Nice entertainment selection. Good value for cost!"
Cons: "Wish it had a little more room, but I am a tall person. I do not believe any other airline provides more in economy, so really should not be a concern."
Pros: "Almost all"
Pros: "Michelle, at the check in desk, went above and beyond to help me. I really appreciate her kindness, professionalism, and hard work to ensure I was comfortable and that my luggage made it on board. The food and entertainment was great. I really loved the goody bag, it was very thoughtful and included everything to make you comfortable for the flight."
Pros: "Price."
Cons: "I had no (NO) room between my knees and the seat in front of me. I'm a 5'10" woman - I can only imagine what a man over 6' must experience. The lines were chaotic, people pushing from behind to get into position in a line that wouldn't be moving anytime soon anyway."
Pros: "The accommodation to the military service members!"
Cons: "Air fresheners should be used on the airplane."
Cons: "It was great! Nice job Delta !"
Cons: "Wouldn’t change a thing! I don’t always fly! But when I do!! I fly delta!!"
Cons: "For options none. No drink carts at all. Had coffee once after I asked. Poor quality entertainment. Just a huge waste of money."
Pros: "Christina brown was amazing at gate"
Pros: "The staff at Delta are always friendly and helpful and they were able to squeeze me onto a very full flight."
Cons: "The main economy seats were far too narrow."
Pros: "I always have a consistently good experience on Delta. Everything was great."
Cons: "It was a Great flight. I always enjoy flying Delta"
Pros: "The crew was great and the free entertainment was great"
Cons: "Bring back pillows and blankets especially on red eyes out of Anchorage"
Cons: "Not really an experienced flyer. Overall the flight seemed good. No issues with airline or airport. Just don’t understand self-important people that feel compelled to push the overhead storage limits with their bags."
Cons: "1.5 hour delay...no reason given!"
Pros: "Love the fact that the head rests move to support your head better."
Pros: "The male crew member was excellent. He was responsive and speedy with trying to find a solution. He gave me a few flyer miles for my trouble and was empathetic, which is rare."
Cons: "The tv/monitor didn’t work so there wasn’t any entertainment for the majority of the flight."
Cons: "No meal option and my video screen volume did not work"
Pros: "The crew was great and super nice!"
Cons: "Screens with games, more leg room, and not having kids behind us messing with tray tables the whole flight."
Pros: "Not comfortable a little but scary on the flight to Detroit. Way better coming back to Denver"
Cons: "Better screens for in-flight movies. More legroom or upgrade options."
Pros: "Entertainment"
Cons: "Boarding at JFK.Always messy"
Pros: "Boarding was quick"
Cons: "No entertainment, plane was small"
Cons: "First delay notification: 1 hour 20 minutes 1 hour later, Second delay notification: 3 hours 15 minutes 2 hours later: Third delay notification: 3 hour 50 minutes Fourth delay notification: 4 hours 25 minutes Fifth delay notification: 4 hour 32 minutes No explanation for reason. Last time flying Delta."
Pros: "Early and middle seat was open!"
Cons: "Coffee tasted like fish. :("
Pros: "The crew on the airplane was great. We had 2.5 hours turbulences but the crew started to give out drinks as soon they got the ok from the pilot"
Cons: "We went in LGA to the Baggage drop off and the employee there was super rude. On the flight to New York with Delta we had to check our carry ons at the gate because it wasn't enough room for bags in the airplane.so we asked when we checked our one suitcase if we can/should check our carry ons to avoid having to do it at the gate. The delta employee told me sure no problem. He checks in my one suitcase I purchased gives me the tracking paper and says ok have a good flight. I asked him so what is with our carry ons and he told us that that would cost 25$ and we can't check those in at the drop off?!?We ended up taking the carry ons with to the gate and then off course there wasn't enough room on the airplane that we had to check it in. And surprise it was free?? We had never issues with Lufthansa, icelandair etc. with checking our bags at drop off to not needing to carry it around and than still end up to check it at the airplane. Every airline has been more than happy that we volunteer to check our bags that they don't have the trouble at the gate."
Pros: "Not much. Boarding by "zone" works ok, but is no quicker than most other boarding methods."
Cons: "Boeing 767-400ER seats had no leg room for 6'+ traveller like me. The entertainment system was so old that there were no 115v outlets or USB ports. On a 7-hour flight, that is a significant problem for travellers today with multiple electronic devices. Finally, we were not told in advance that we had to go through security twice and through US Customs BEFORE leaving Dublin. So, the 6-hour layover at JFK was a complete waste of our time as we did not have to go through Customs there."
Pros: "Free drinks and snacks - great entertainment system (please read this Frontier)!"
Cons: "Boarding process was agonizingly slow and ineffective"
Pros: "The seats had plenty of leg room and the crew was was very kind."
Cons: "My seat was uncomfortable and I was seated in the only row of the aircraft without entertainment for a four hour flight. Then on top of that the passenger next to me removed his shoes and you could smell his feet from a mile away but the flight attendants never requested for him to replace his shoes."
Pros: "I usually have had great experiences with Delta. The meal selection was limited. By the time they made it up to my seat they had run out of what we wanted. Also, the entertainment system at my seat and my husbands wasn’t working well. One of the bathrooms had a cabinets Tvst oliiiooooiiooooioiooiiiooiio"
Pros: "The staff really helped me out getting on standby so that I didn't have to wait for a 9 hour layover. Overall great experience and great staff."
Pros: "In a pinch they were able t"
Pros: "Great in every way"
Pros: "Excellent piloting and cabin crew."
Cons: "Check in lines were crazy long"
Cons: "My daughter was stuck in SLC for 5 hours because there 1 cancelled flight and 1 delayed flight. It was very upsetting not knowing when she going to arrive in Denver."
Pros: "First leg from San Diego was excellent."
Cons: "Arriving in SLC discovered out flight to Denver was CANCELLED! Had to reschedule to the next day. Not fun!"
Pros: "The entertainment unit allowed me to watch the Denver Broncos game live which helped lessen the delayed departure and uncomfortable seating."
Cons: "Uncomfortable seating....too crowded!! We had a delayed departure by 30-40 minutes because of a computer download issue. Too many folks carrying carry-ons delayed boarding. I wish folks were not encouraged to go that route but to check baggage. This time of year gets even tougher with folks carrying Christmas presents and over sized personal items. Ugh. Not fun to travel this time of year."
Pros: "really helpful and friendly service and nice seats."
Pros: "free texting and entertainment!"
Cons: "our flight was delayed half an hour."
Pros: "Crew was all very nice"
Cons: "Flying is always uncomfortable"
Cons: "Excellent service excellent pilot"
Pros: "Overall, the flight was very smooth and I thought the crew did a great job."
Cons: "I know this is a federal regulation, but I have to mention it as it is part of the boarding process. For the life of me, I can't understand why it is necessary to go through security again after re-entering the country. Understandable that I have to go through customs, but going through security again is ridiculous."
Pros: "Free in flight entertainment"
Cons: "One of my bags went to Santa Fe"
Pros: "Entertainment"
Cons: "This is my third flight this year with Delta and every time we wait for the "crew" to get off from another flight. And as soon as they get there we can board. It's getting very annoying. Fix it."
Pros: "Early arrival. And service"
Cons: "I was assigned very last seat and there is no reclining option."
Cons: "long wait and delayed flight"
Pros: "WiFi, good flight attendants"
Cons: "Would like to see Direct TV along with Delta Suite so can watch live TV"
Pros: "Attendants and entertainment"
Cons: "Delays for no explained reason"
Pros: "One male attendant from the first class cabin - super sweet and attentive to our needs even tho we're not seating in the premium cabin"
Cons: "Junior attendants in economy comfort seat - so lazy and whiny!"
Pros: "From the Ground crew to the Flight crew, you can feel the genuine care and thoughtfulness of everyone! They even remember you, if you fly often enough, and let you know how much they appreciate your business."
Pros: "Very professional and caring."
Cons: "Flight was repeatedly delayed. Ended up being over 3 hours late to depart due to weather. Another delay due to mechanical problems."
Pros: "I liked how generous they were with food and drinks"
Cons: "Free WiFi could have made the flight a lot better"
Pros: "Great crew."
Cons: "Ran out of business class meal. Substituted a Econ class."
Pros: "Customer care was super supportive"
Cons: "Inflight sandwiches"
Pros: "Yes"
Cons: "Everything was good"
Cons: "Fix the damn KIOSKS at Vienna!"
Pros: "Seats super comfy. Ended up with 3 seats to myself that formed a bed for the lap Uk to NZ. Very nice!"
Cons: "Flight 2 hours delayed, started boarding but had to wait on line 10 more minutes on boarding ramp for plane door to be opened, upon landing in Dublin had to wait on tarmac for anther 15 minutes for stairs to arrive and be connected to airplane. Then had to wait another hour for checked luggage...."
Pros: "The crew is really welcoming"
Cons: "The seats are too narrow and a bit too hard"
Pros: "Crew was very engaging and service was good."
Cons: "My seat was horrible. Right at the door, crammed, and no place to store my carry-on luggage."
Cons: "We were allowed to choose our seats from SFO to Amsterdam but not for the return flight. I like to be able to choise my seats when I book the flight. Choosing seats 24 hours before is not convenient when traveling for the return trip."
Cons: "Flight on time would have been good when you have a late evening arrival. Long wait for luggage at Birmingham airport."
Pros: "The crew was great! The food was also much better than other airlines. And passing out whole bottles of water was much appreciated."
Cons: "We had 4 hour delay causing a stop over at 3am. So yeah"
Pros: "Being fed was amazing and watching free TV was great!"
Cons: "I wish there were personal fans because it got uncomfortably hot sandwiched between people"
Pros: "The flight was smooth, the service was friendly, and the food with plentiful."
Cons: "Too much activity in the cabin during the flight."
Pros: "Crew was good"
Cons: "Food"
Pros: "The crew were amazing and the flight was very smooth."
Cons: "Keep up the good work"
Pros: "The service"
Cons: "The food."
Pros: "The crew was really friendly."
Cons: "There was a Force Majeur delay in Helsinki due to wings freezing that caused 20 minute delay to Amsterdam and made the interchange stressful."
Pros: "Friendly staff"
Cons: "Leg room"
Pros: "Crew where awesone and the choice of entertainment was fantastic"
Cons: "Seats way to close together"
Pros: "Flying with KLM is a pleasure"
Cons: "Services was pretty weird .. Perse or crew Leader was ok But the assistent Young one was Really bad.. aptitud and not friendly at all."
Pros: "Efficient crew"
Cons: "Long, slow line at check in. Not many new movies or tv shows"
Pros: "Everything was clean and well organized."
Cons: "The flight was delayed 1 1/2 hours."
Pros: "kLM staff was great."
Pros: "Interior of the plane was clean. Smooth landing."
Cons: "Pilot did not avoid turbulence"
Pros: "The entertainment options were good."
Pros: "Travel on Crostian Airlines did not pappen. KLM flight to Munich was cancelled and I was rescheduled on Air Setbia to Belgrade, the Split."
Cons: "That it didn’t happen."
Pros: "Left ontime and service was excellent."
Pros: "Boarding was as expected, crew & food were ok. Nothing else positive to extract out of this flight."
Cons: "Delayed flight, horrible baggae policy when the flight is actually operated by a partner of the company you bought the ticket from and not the actual company. Dirty seats, no in-flight entertainment whatsoever (not even a magazine)."
Pros: "Really friendly staff. Great service"
Pros: "Friendly staff, good service and on time departure/arrival."
Pros: "Short flight with good communication."
Cons: "Nil to complain."
Cons: "Crowded seating, wake-up for breakfast service two hours before arrival"
Pros: "Consistently high standards"
Cons: "Nothing"
Pros: "Helpful and smiling cabin crew."
Cons: "KLM crews look unhappy with their work. Everything they do is a favor not duty."
Pros: "Loved the service...everything was excellent"
Cons: "The bus class seat was a bit narrow at the feet"
Pros: "Arriving more or less on time"
Cons: "Crew is awful. Disrespectful desinterested in customers find themselves very important. No service mentality whatsoever. No respectful airline would hire such arrogant self centered personalities in a service role"
Pros: "On time."
Cons: "No negative"
Pros: "Free wee cake."
Cons: "Nothing in particular."
Pros: "Short layover connecting from US flight and luggage transferred ok to destination. Food option not great but at least they didn't charge for it unlike some other airlines. No entertainment but to be expected on such a short flight."
Pros: "Wonderful"
Pros: "Spacious cabins, friendly service"
Cons: "Very slow service. I wanted to by several goods from duty free. But crew served only first 20 rows of aircraft."
Pros: "10 hour flight - I was well looked after, regular drinks, the food and snacks were good enough and tasty. The in flight entertainment was good - latest movies and worked a great variety of tv, books and movies. The airplane was modern and comfortable"
Cons: "Since we had two extra bags (paid for in Chicago), they demanded to see my receipt before we could board in Amsterdam to Nairobi. We had trouble locating the receipt and we were not given an explanation as to why we needed it again. We were traveling with 5 kids including an infant and we were not allowed to board until we found the receipt. I thought surely they would have record that I had paid, but I guess not. We were the last to board and all very stressed out. The staff seemed not to care the least in our troubles."
Cons: "Flight was delayed 4 hours. was not able to make connecting flight in Amsterdam. No flights from Amsterdam to final destination in the US. Lost one full day. Had to stay overnight. What a cluster mess. Will never fly with KLM airlines and would not recommend. Will spend a little extra money and fly on other airlines......very poor, disorganized, and horrendous flight experience. Buyer beware."
Cons: "Stranded for 48 hours in Africa. Missed 3 flights due to complete incompetence, truly a horrible experience."
Pros: "The crew was very responsive. The seat requires real improvement. Austrian can provide bette seat than the allowed minimum."
Cons: "Food and seat comfort."
Pros: "Friendly and helpful crew, smooth transfer between flights, comfortable adjustable headrest, easy to request special meal online before flight."
Cons: "Movies available weren't to my taste, which isn't of great importance anyway."
Pros: "Stewards dis perfect job"
Pros: "One hour delay after boarding due to loosing our “slot”"
Cons: "Timing!!!"
Cons: "Seating is extremely cramped"
Pros: "The crew was good. They were friendly and efficient. One did forget to return with a promised coffee but she apologized when I spoke of it to her."
Cons: "1. no air conditioning until the plane was in the air. It was STIFLING on the runway. 2. no power sockets to charge devices"
Pros: "Good flight , bad flight delay and luggage."
Cons: "To be on time"
Pros: "Amazing crew"
Cons: "WIFI"
Cons: "The 34 minute flight was delayed by almost 2 hours."
Pros: "The crew was super friendly, food was great and entertainment on board was a great selection."
Cons: "Was very warm on the plane as certain times and even at the terminal, which we could control the fan blowing on us."
Pros: "For short flight the seats are ok with space for the legs"
Cons: "The flight was 30 minutes delayed"
Cons: "Food"
Cons: "Seats very hard and uncomfortable in economy"
Pros: "We could walk around as needed. No restrictions. Free wine with meals!"
Cons: "Staff not friendly or offering of assistance."
Pros: "I like the food and servise"
Pros: "Luggage came extremely quickly"
Cons: "We upgraded to business and paid way more than the flight over and the service was much worse. Food wasn’t as good and not nearly as much."
Pros: "This is always a pleasant airline to travel with."
Cons: "I felt like the airlines deliberately cheated me. I purchased a flight that was listed as "economy" , which means I am authorized one suitcase. When I got to checkout they said I had pay for the suitcase. Turns out my flight was economy 'light' flight and I had to go the Austrian airlines desk and pay euro 40 for my suitcase. Wish that would have been clear when I purchased the ticket. Also there is no clear info on what the cost is for your bag at what point in the check-in process."
Pros: "Friendly flight attendants."
Cons: "Lost baggage is never good."
Cons: "THey denied me and I lost all tickets including back trips as well. Nobody helped me to change tickets, they just care about money and reselling my tickets to other passengers."
Cons: "See red comment above."
Cons: "We had a delay of nearly two hours."
Pros: "Friendly staff, efficient"
Cons: "I didn’t understand that we got no baggage allowance with our tickets. When I looked on the website it appeared that star alliance members got the usual free luggage. Apparently it was a “lit” fare & we didn’t. It would have been worth it to get the next class of fare"
Cons: "Firstly . The crew were rude ! They did not even response when were calling them from the seat . The only way to talk to them is to find them at the end of the plane ( where they been chating with each other ) Secondly . The amount of snacks was limited where’s in Turkish airlines it’s unlimited and you can choose different sandwiches whereas in Austrian airilines can offer biscuits and Cookies ;( Thirdly . We are living in 21 century and most transatlantic airlines have WiFi ! Where’s Austrian did not have it!"
Pros: "Everything was at the good level. Professional people to work with."
Cons: "Not enough room for overhead bags. Had to put mine in the front of the plane while I sat at the back of the plane. What I really didn't like is that I called Kayak to include my Global Entry number on my boarding pass. They said it would be there and when I printed it, it wasn't. So coming back into the states and thru customs took waaay longer than it should have with those chaotic and ridiculously long lines. I didn't bring my Global Pass card with me and will from now on!"
Pros: "Everything was excellent"
Pros: "Nothing special."
Cons: "Limited meal choices (I flew business class). It seems Austrian puts more emphasis on the Trans-Atlantic flights and less on short hauls."
Cons: "They cancel the flight without letting me know!"
Pros: "My flight to SJJ was rescheduled for the day later. However, Austrian ground services provided efficient service and support in finding suitable accommodation at the Vienna Airport."
Pros: "Short flight"
Cons: "I have to pay for food or drink"
Cons: "A319 is inherently a badly arranged seating layout. Was in Row 30, no recline, and 3 full grown men for a 3 1/2 hour flight. I wonder if squeezing in the extra 3 or 6 seats is a payout when looking at people's likelihood to fly again?"
Pros: "Not much"
Cons: "Lateness and virtually no food at lunchtime"
Pros: "crew"
Cons: "Flight get cancelled and they needed 4 hours to tell me you are going with another airline with multiple steps for next day. I missed two very important meetings."
Pros: "Seats were comfortable Bathrooms clean"
Cons: "Crew wasn't very helpful and didn't ensure my stroller was delivered at the aircraft exit Had trouble closing my suitcase into the overhead compartment and called for assistance, to which i got reprimanded for opening it in the first place Requested coffee because i couldn't get it myself, being with a sleeping toddler, to which i got a horrible answer: the flight attendant told me i had to get it myself in the kitchenette"
Pros: "The crew was wonderful, as is always true with both Austrian Airlines and Lufthansa."
Pros: "IT WOES HAREBELL. 4 HOURS BEFORE THE FLIGHT THEY TELL NE THETA WE DOESN`T HAVE PLIES ON THE FLIGHT. THE MAN IN DESC 377 GAVE TO ME BIRDING CARD TO GET G. IN STAND-BY. THER FLIGHT 599 NOT ON THE BORD. AT THE HEAD OFFICE OFF THE OSTREIN CCOMPANY IN GAT G TELL TO WAIT. HALF HOUR LATER STILL THE FLIGHT NO ON THE BORD AND I RAN EAGEN TO OFFICE OF OSTRIEN END NOW THEY SAD IT`S MESTEK AND I IN GET F . NOW WE MAST MAKE THE SECURITY CHECK OVER AGAIN . WE RAN TO GET F TO FLOOR DAWN . IN THE END...WE GET BORDING CARD WITH SEPARATED SETS."
Cons: "RUDENESS INSOLENCE RATTLE, RUN-AROUND MISTAKE, OR EVIL"
Pros: "We arrived on time"
Cons: "We had to stand around for a long time waiting for a bus to take us to the plane. The bus was horribly crowded. Then we arrived at the plane and had to walk up the stairs to get on. There was no food served---just a cracker and some juice or water. After we arrived in Paris we waited a long time for the baggage to arrive."
Pros: "N/A"
Cons: "The birding officer didn't inform me about the visa requirements to cross from Dusslouf to Vinna airport. This caused a big problem for me in the airport, where I: 1- Wasn't allowed to catch my flight ti Vinnea and this was both financial and time lost for me. 2- I was locked in Dussluff airport for more than 14 hours, I was threatened to be sent back to USA or any other country. This caused physiological damage for me, as I been treated like an animal 3- I was asked to pay for my new ticket ( Dussloff - Istanbul-Amman )"
Pros: "Everything was great! The staff was friendly and really tried to make our experience the best it can be!"
Cons: "The only thing I didn't like was that in one of the bathrooms, the sink was clogged up a little bit."
Cons: "very tight connection in VIE after a small late departure from LHR but we make the connection."
Pros: "The service was good, everyone from the staff extremely friendly and overall the flight was very quick."
Cons: "I did my fligh because I was in the hospital I have send a mail to kayak and to the agent I have booked the flight with No one got back to me yet!!!!!!!"
Pros: "I was pleased by the comfort of the seats, the staff on board and the flight itself. The flight actually did not seem at all like 9 hours. And it arrived exactly on time."
Cons: "The crew at the airport before boarding was a little impolite. As people were getting ready to board and waiting in the line, they were told to go back to customer service to register passports and get new boarding passes, without prior announcement. That could have been avoided if they informed us."
Pros: "Right on schedule!!"
Pros: "Boarding gate was fast to get into the aircraft, flight was on time. Staff was friendly and helpful."
Cons: "Nothing negative"
Cons: "As I was flying from London Heathrow back to Vienna, I had a carry-on that was allowed on my flight with Austrian from Vienna to London. My carry-on weighed 8 kg, like is required by the rules. While boarding my flight, the woman at the counter told me my bag had to be checked because there were too many carry-ons on the flight. I asked her that I keep my bag because I had medication in there, and she didn't listen to me at all. She just kept repeating that i have to check my bag, and then took my bag from me and gave it to the baggage crew there. I didn't want to make a huge scene because the flight is only 2 hours and I hoped i Could deal without my medication during that time, but I found it incredibly, incredibly rude and awful to not listen to a passenger."
Pros: "The female attendants were nice."
Cons: "The male attendants, who were on my side, were not very attentive. I had a small child with me and they didn't seem to realize the challenges associated with what I was doing. Also, my child's screen would not work most of the time, even though I told the attendants."
Pros: "The food was excellent and the business class layout was perfect."
Cons: "On the arrival at Toronto, there was no one at the gate to roll out the gangway bridge. So we waited on the plane 10 minutes. We were flying on to LAX on Air Canada. It took 1 3/4 hours for our luggage to clear the US Customs pre check. Unsatisfactory."
Pros: "friendly, helpful crew"
Cons: "I paid a premium to book a direct flight (ages ago) and then had to rerouted last minute (same day) with no reason given other than "it's our fault". I inquired about paying to change destination city and or seat to a premium seat (for the 9+ hour flight) when I recvd the reservations for the new flights that were made at the airport around 8am for flights that left at around noon and 3pm. I was told no better seat(s) was available. However, a half hour before the flight was boarded several announcements were made regarding all the upgrades that were available. Liars annoy me."
Pros: "I enjoyed the flight along with my girlfriend from beginning to end. The flight attendants were very courteous & the service was fast & the food & drink portions were generous."

Book cheap flights from Austria to Colorado

Recent round-trip flight deals

8/28Mon
2 stopsUnited Airlines
22h 56mVIE-DEN
9/5Tue
2 stopsUnited Airlines
18h 15mDEN-VIE
$651
8/23Wed
2 stopsKLM
22h 21mVIE-DEN
8/29Tue
2 stopsKLM
18h 00mDEN-VIE
$656
8/28Mon
1 stopMultiple Airlines
15h 50mVIE-DEN
9/5Tue
1 stopMultiple Airlines
18h 15mDEN-VIE
$660
8/23Wed
1 stopDelta
16h 05mVIE-DEN
8/29Tue
2 stopsDelta
15h 10mDEN-VIE
$668
9/17Sun
1 stopBritish Airways
29h 30mVIE-DEN
9/30Sat
1 stopBritish Airways
15h 45mDEN-VIE
$669
8/24Thu
2 stopsKLM
20h 20mVIE-DEN
8/29Tue
2 stopsKLM
18h 00mDEN-VIE
$671
8/13Sun
2 stopsKLM
19h 13mVIE-DEN
8/28Mon
2 stopsKLM
16h 35mDEN-VIE
$672
8/13Sun
2 stopsMultiple Airlines
19h 13mVIE-DEN
8/28Mon
1 stopMultiple Airlines
21h 45mDEN-VIE
$673
9/17Sun
1 stopLufthansa
27h 20mVIE-DEN
9/30Sat
2 stopsLufthansa
17h 53mDEN-VIE
$675
8/23Wed
2 stopsKLM
18h 29mVIE-DEN
8/30Wed
2 stopsKLM
15h 20mDEN-VIE
$679
8/23Wed
1 stopMultiple Airlines
16h 05mVIE-DEN
8/30Wed
2 stopsMultiple Airlines
15h 20mDEN-VIE
$682
9/17Sun
2 stopsAmerican Airlines
24h 29mVIE-DEN
9/30Sat
2 stopsAmerican Airlines
19h 20mDEN-VIE
$686
8/23Wed
1 stopLufthansa
14h 40mVIE-DEN
8/29Tue
1 stopLufthansa
12h 40mDEN-VIE
$708
8/22Tue
1 stopLufthansa
13h 10mVIE-DEN
8/30Wed
1 stopLufthansa
12h 40mDEN-VIE
$715
8/28Mon
2 stopsUnited Airlines
42h 09mVIE-COS
9/5Tue
2 stopsUnited Airlines
18h 24mCOS-VIE
$719
8/26Sat
2 stopsDelta
21h 06mVIE-DEN
9/1Fri
2 stopsDelta
20h 05mDEN-VIE
$725
8/23Wed
2 stopsAir Canada
16h 45mVIE-DEN
8/29Tue
2 stopsAir Canada
18h 05mDEN-VIE
$761
7/25Tue
2 stopsAustrian Airlines
29h 27mVIE-DEN
1/1Mon
2 stopsAustrian Airlines
17h 05mDEN-VIE
$773
5/25Thu
1 stopAir Canada
17h 35mVIE-DEN
6/11Sun
2 stopsAir Canada
18h 05mDEN-VIE
$775
8/22Tue
2 stopsBritish Airways
18h 35mVIE-DEN
9/2Sat
2 stopsBritish Airways
19h 20mDEN-VIE
$777

Search by stops

Search by airline

Search by price

Recent one-way flight deals

4/17Mon
3 stopsMultiple Airlines
34h 08mVIE-DEN
$458
6/18Sun
2 stopsMultiple Airlines
30h 03mVIE-DEN
$639
6/20Tue
2 stopsDelta
19h 38mVIE-DEN
$657
6/15Thu
2 stopsDelta
21h 27mVIE-DEN
$659
6/16Fri
3 stopsMultiple Airlines
32h 56mVIE-DEN
$661
6/16Fri
2 stopsAir France
21h 53mVIE-DEN
$667
5/29Mon
2 stopsMultiple Airlines
24h 07mVIE-DEN
$710
4/17Mon
2 stopsMultiple Airlines
35h 09mVIE-DEN
$722
7/5Wed
3 stopsMultiple Airlines
26h 17mVIE-DEN
$748
6/21Wed
1 stopAir France
16h 45mVIE-DEN
$750
6/19Mon
1 stopAir France
16h 45mVIE-DEN
$755
6/19Mon
2 stopsDelta
20h 57mVIE-DEN
$847
7/5Wed
1 stopAir France
16h 45mVIE-DEN
$945
7/5Wed
2 stopsDelta
18h 00mVIE-DEN
$978
6/18Sun
1 stopLufthansa
27h 20mVIE-DEN
$1,018
3/27Mon
2 stopsTurkish Airlines
34h 43mSZG-DEN
$1,186
4/18Tue
2 stopsSingapore Airlines
36h 29mSZG-DEN
$1,311
4/17Mon
1 stopAir Canada
31h 35mVIE-DEN
$1,361
5/29Mon
3 stopsScandinavian Airlines
20h 57mVIE-DEN
$1,905
6/20Tue
1 stopUnited Airlines
15h 29mVIE-DEN
$2,144

Search by stops

Search by airline

Search by price

Flights to Colorado

Return flight deals:

Colorado - Austria

Cabin classes:

$3,524
$1,200
$597

Browse origins:

$766
$654
View more

Browse destinations: